Candora Sewing Thread Assortment Coil 30 Color 250 Yards Each Polyester Thread Sewing Kit All Purpose Polyester Thread for Hand and Machine Sewing Material:Polyester. Thread can be used by hand or machine.For fabric by the yard. High-quality.You can see in the Picture. Each Spool Contains Approximately 228.6 Metres(9000In) of material. Package Content:1 set of 30pcs sewing thread spools(serger thread).